摘要
针对挖掘机作业中经常遇到的特殊工况,设计了一种适用范围更广的步履式挖掘机,对挖掘机底盘的支腿形式和主体结构布局进行了研究。结合挖掘机的模型和主要技术参数,采用有限元仿真的方法对底盘主体进行了多工况条件下的静应力和疲劳分析,结果验证了底盘结构的可靠性。同时,研究结果表明在底盘回转支承两侧易发生疲劳失效,为步履式底盘主体结构的优化提供了依据。
Aiming at the special working conditions,it designs the walking excavator for a wider range application. It analyzes the form of tire legs and the main structure layout of the excavator chassis,proposes the excavator model and the main technical parameters,uses the finite element analysis to realize static stress and fatigue analysis under multi working conditions. The results verify the reliability of the chassis structure,show that the fatigue failure is easy to generate on both sides of slewing bearing of the chassis. This method provides theoretical basis for the optimization of the walking chassis structure.
作者
王勇
邢振振
张鑫
祖海英
赵伟民
WANG Yong;XING Zhenzhen;ZHANG Xin;ZU Haiying;ZHAO Weimin(School of Mechanical Science and Engineering, Northeast Petroleum University, Heilongjiang Daqing, 163318, China;Beijing CRRC Heavy Industry Mechanics Co. ,Ltd Beijing, 102200, China)
出处
《机械设计与制造工程》
2018年第5期44-46,共3页
Machine Design and Manufacturing Engineering
关键词
步履式挖掘机
底盘
结构设计
可靠性分析
walking excavator
chassis
structure design
reliability analysis
